<template>
  <div class="login-container">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      autocomplete="on"
      label-position="left"
    >
      <div class="title-container">
        <h3 class="title">{{ loginType == "login" ? "登 录" : "注 册" }}</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="请输入用户名"
          name="username"
          type="text"
          tabindex="1"
          autocomplete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="请输入密码"
          name="password"
          tabindex="2"
          autocomplete="on"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon
            :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
          />
        </span>
      </el-form-item>

      <!-- 确认密码 -->
      <el-form-item prop="repassword" v-if="loginType == 'register'">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="repasswordType"
          ref="repassword"
          v-model="loginForm.repassword"
          :type="repasswordType"
          placeholder="请输入确认密码"
          name="repassword"
          tabindex="3"
          autocomplete="on"
        />
        <span class="show-pwd" @click="showRePwd">
          <svg-icon
            :icon-class="repasswordType === 'password' ? 'eye' : 'eye-open'"
          />
        </span>
      </el-form-item>

      <el-button
        :loading="loading"
        type="primary"
        style="width:100%;margin-bottom:30px;"
        @click.native.prevent="handleLogin"
        >{{ loginType == "login" ? "登录" : "注册" }}</el-button
      >
      <el-button
        style="width:100%;margin-bottom:30px;margin-left: 0"
        @click.native.prevent="
          loginType == 'login'
            ? (loginType = 'register')
            : (loginType = 'login')
        "
        >{{ loginType == "login" ? "切换到注册" : "切换到登录" }}</el-button
      >
    </el-form>
  </div>
</template>

<script>
// import { validUsername } from "@/utils/validate";
import { register } from "../../api/user";

export default {
  name: "Login",
  data() {
    const validateUsername = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("用户名不能为空"));
      } else {
        callback();
      }
    };
    /* const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error("The password can not be less than 6 digits"));
      } else {
        callback();
      }
    }; */

    var validatePass = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("密码不能为空"));
      } else {
        if (this.loginForm.password !== "") {
          this.$refs.loginForm.validateField("checkPass");
        }
        callback();
      }
    };
    var validatePass2 = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("密码不能为空"));
      } else if (value !== this.loginForm.password) {
        callback(new Error("两次输入密码不一致!"));
      } else {
        callback();
      }
    };
    return {
      loginForm: {
        username: "",
        password: "",
        repassword: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", validator: validateUsername }
        ],
        password: [
          { required: true, trigger: "blur", validator: validatePass }
        ],
        repassword: [
          { required: true, trigger: "blur", validator: validatePass2 }
        ]
      },
      passwordType: "password",
      repasswordType: "password",
      capsTooltip: false,
      loading: false,
      showDialog: false,
      redirect: undefined,
      otherQuery: {},
      loginType: "login"
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        const query = route.query;
        if (query) {
          this.redirect = query.redirect;
          this.otherQuery = this.getOtherQuery(query);
        }
      },
      immediate: true
    }
  },
  created() {
    // window.addEventListener('storage', this.afterQRScan)
  },
  mounted() {
    if (this.loginForm.username === "") {
      this.$refs.username.focus();
    } else if (this.loginForm.password === "") {
      this.$refs.password.focus();
    }
  },
  destroyed() {
    // window.removeEventListener('storage', this.afterQRScan)
  },
  methods: {
    // checkCapslock(e) {
    //   const { key } = e;
    //   this.capsTooltip = key && key.length === 1 && key >= "A" && key <= "Z";
    // },
    showPwd() {
      if (this.passwordType === "password") {
        this.passwordType = "";
      } else {
        this.passwordType = "password";
      }
      this.$nextTick(() => {
        this.$refs.password.focus();
      });
    },
    showRePwd() {
      if (this.repasswordType === "password") {
        this.repasswordType = "";
      } else {
        this.repasswordType = "password";
      }
      this.$nextTick(() => {
        this.$refs.repassword.focus();
      });
    },
    // 注册 登录
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginType == "login") {
            this.$store
              .dispatch("user/login", this.loginForm)
              .then(() => {
                this.$router.push({ path: "/" });
                this.$message.success("登录成功");
                this.loading = false;
              })
              .catch(error => {
                this.$message.error(error.response.data.data);
                this.loading = false;
              });
          } else {
            register(this.loginForm)
              .then(response => {
                this.loading = false;
                if (response.code == 20000) {
                  this.$message.success("注册成功");
                  this.loginType = "login";
                }
              })
              .catch(error => {
                this.$message.error(error.response.data.data);
                this.loading = false;
              });
          }
        } else {
          console.log("error submit!!");
          return false;
        }
      });
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== "redirect") {
          acc[cur] = query[cur];
        }
        return acc;
      }, {});
    }
  }
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .thirdparty-button {
    position: absolute;
    right: 0;
    bottom: 6px;
  }

  @media only screen and (max-width: 470px) {
    .thirdparty-button {
      display: none;
    }
  }
}
</style>
